| 1 | /* |
|---|---|
| 2 | * SPDX-FileCopyrightText: 2021 Arjen Hiemstra <ahiemstra@heimr.nl> |
| 3 | * |
| 4 | * SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL |
| 5 | */ |
| 6 | |
| 7 | #include "BarChartMaterial.h" |
| 8 | |
| 9 | BarChartMaterial::BarChartMaterial() |
| 10 | { |
| 11 | setFlag(flags: QSGMaterial::Blending); |
| 12 | } |
| 13 | |
| 14 | BarChartMaterial::~BarChartMaterial() |
| 15 | { |
| 16 | } |
| 17 | |
| 18 | QSGMaterialType *BarChartMaterial::type() const |
| 19 | { |
| 20 | static QSGMaterialType type; |
| 21 | return &type; |
| 22 | } |
| 23 | |
| 24 | QSGMaterialShader *BarChartMaterial::createShader(QSGRendererInterface::RenderMode) const |
| 25 | { |
| 26 | return new BarChartShader(); |
| 27 | } |
| 28 | |
| 29 | int BarChartMaterial::compare(const QSGMaterial *other) const |
| 30 | { |
| 31 | auto material = static_cast<const BarChartMaterial *>(other); |
| 32 | |
| 33 | /* clang-format off */ |
| 34 | if (material->aspect == aspect |
| 35 | && qFuzzyCompare(p1: material->radius, p2: radius) |
| 36 | && material->backgroundColor == backgroundColor) { /* clang-format on */ |
| 37 | return 0; |
| 38 | } |
| 39 | |
| 40 | return QSGMaterial::compare(other); |
| 41 | } |
| 42 | |
| 43 | BarChartShader::BarChartShader() |
| 44 | { |
| 45 | setShaders(QStringLiteral("barchart.vert"), QStringLiteral( "barchart.frag")); |
| 46 | } |
| 47 | |
| 48 | BarChartShader::~BarChartShader() |
| 49 | { |
| 50 | } |
| 51 | |
| 52 | bool BarChartShader::updateUniformData(QSGMaterialShader::RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) |
| 53 | { |
| 54 | bool changed = false; |
| 55 | |
| 56 | UniformDataStream uniformData(state); |
| 57 | |
| 58 | if (state.isMatrixDirty()) { |
| 59 | uniformData << state.combinedMatrix(); |
| 60 | changed = true; |
| 61 | } else { |
| 62 | uniformData.skip<QMatrix4x4>(); |
| 63 | } |
| 64 | |
| 65 | if (state.isOpacityDirty()) { |
| 66 | uniformData << state.opacity(); |
| 67 | changed = true; |
| 68 | } else { |
| 69 | uniformData.skip<float>(); |
| 70 | } |
| 71 | |
| 72 | if (!oldMaterial || newMaterial->compare(other: oldMaterial) != 0) { |
| 73 | const auto material = static_cast<BarChartMaterial *>(newMaterial); |
| 74 | uniformData << material->aspect; |
| 75 | uniformData << material->radius; |
| 76 | uniformData << material->backgroundColor; |
| 77 | changed = true; |
| 78 | } |
| 79 | |
| 80 | return changed; |
| 81 | } |
| 82 |